What is the Meaning of '''Average'''???

I am not able to understand the meaning of """AVERAGE SINGING""" used by Alka...During Indore Auditions she said AVERAGE to the singer who sang Kavita's song number..she was damn brilliant...All the judges were impressed and could resist her to take her to the next round but ALKA.....

Ist June Episode....Girl who sang "Jubah pe laga, Namak IShq Ka" was brilliant..she was even mentioned lets go to Mumbai...BUT again alka said "AVERAGE"...I think it should be published in newspapers that if a contestant will sing songs other than Alka' Likings than "NO MATTER WHAT" it will be counted as "AVERAGE"...

She is just pathetic on judging.......I would judge her judgement as """AVERAGE"""..

Average